Choose the best answer to complete each sentence.
1. 75 percent of the earth's surface (is covered/ covered/ are covered/ are being covered) by seas and oceans
2. I really think you (would/ should/ will/ need) go and see the doctor, you look very tired
3. I think he (should ride to/ should stay/ shouldn't stay/ shouldn't go out) home tonight because his mother was sick
4. Sperm whale population is at risk due to hunting pressures (in danger/ in fewness/ in extinction/ on the decreased)
5. The (lose/ lost/ loss/ losing) of forest is destroying the earth's plant and animal variety
6. I was enjoying my book, but I stopped reading (to watch/ watch/ for watching/ watching) a program on TV
7. Cuc Phuong National Park is (lied/ established/ abandoned/ located) 160km South West of Ha Noi
8. Scientists are now researching new measures to prevent (pollution/ polluting/ polluted/ pollute) levels from rising
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Sinh Học lớp 12
